Kelso, Washington
Kelso is a city in Cowlitz County, Washington, with an estimated population of 12,648 in 2023. It sits at 46.1168, -122.8865 in the America/Los_Angeles time zone.
| Field | Value |
|---|---|
| Place name | Kelso |
| Type | city |
| State | Washington (WA) |
| County | Cowlitz County |
| Population (2023 est.) | 12,648 |
| Land area | 8.13 sq mi (21.07 km²) |
| Coordinates | 46.1168, -122.8865 |
| Time zone | America/Los_Angeles |
| ZIP codes | 98626 |
ZIP codes and area codes for Kelso
Kelso covers 1 ZIP code: 98626. Browse all ZIP codes in Washington for the full list.
Where is Kelso?
Kelso is located in Washington, in Cowlitz County. The coordinates above can be pasted directly into any map service. The nearest indexed places are listed below, which is a useful check when two states share a place name.
Nearby places
Rainier 7 km · ORLongview 7 km · WAKalama 12 km · WACastle Rock 17 km · WAWoodland 24 km · WAClatskanie 25 km · ORColumbia City 25 km · ORSt. Helens 29 km · OR
Other places in Cowlitz County
Frequently asked questions
What county is Kelso, WA in?
Kelso is in Cowlitz County, Washington.
What is the population of Kelso, WA?
The 2023 Census Bureau estimate is 12,648.
What time zone is Kelso in?
Kelso is in the America/Los_Angeles time zone.